Ok Perfekt, ich habe das jetzt so gemacht, wie du gesagt hast. Hier mal mein Code
Code: Alles auswählen
private void BuildSpriteShape()
{
var spriteShape = new InstancedShape();
float[] verticies =
{
//Verticies
-0.5f, -0.5f, 0.0f,
-0.5f, 0.5f, 0.0f,
0.5f, 0.5f, 0.0f,
-0.5f, -0.5f, 0.0f,
0.5f, 0.5f, 0.0f,
0.5f, -0.5f, 0.0f,
//Colors
1.0f, 1.0f, 1.0f,
1.0f, 1.0f, 1.0f,
1.0f, 1.0f, 1.0f,
1.0f, 1.0f, 1.0f,
1.0f, 1.0f, 1.0f,
1.0f, 1.0f, 1.0f,
//Tex Coords
0.0f, 0.0f,
0.0f, 1.0f,
1.0f, 1.0f,
0.0f, 0.0f,
1.0f, 1.0f,
1.0f, 0.0f
};
// Create Vertexbuffer and set the data
spriteShape.vbo = gl.GenBuffer(1);
gl.BindBuffer(OpenGL.ArrayBuffer, spriteShape.vbo);
gl.BufferData(OpenGL.ArrayBuffer, verticies.Length * sizeof(float), verticies, OpenGL.DynamicDraw);
gl.EnableVertexAttribArray(0);
gl.VertexAttribPointer(0, 3, OpenGL.Float, false, 0, 0);
gl.EnableVertexAttribArray(1);
gl.VertexAttribPointer(1, 3, OpenGL.Float, false, 0, 18 * sizeof(float));
gl.EnableVertexAttribArray(2);
gl.VertexAttribPointer(2, 2, OpenGL.Float, false, 0, 36 * sizeof(float));
this.InstancedShapes.Add("SpriteShape", spriteShape);
}
und dann hier meine render funktion
Code: Alles auswählen
public void DrawSprite(Sprite sprite)
{
//Create the modelview matrix
mat4 mt_mat = mat4.Translate(sprite.Location.X, sprite.Location.Y, sprite.Location.Z);
mat4 mr_mat = mat4.RotateZ(sprite.Rotation);
mat4 ms_mat = mat4.Scale(sprite.Size.X, sprite.Size.Y, sprite.Size.Z);
mat4 m_mat = mt_mat * mr_mat * ms_mat;
//Create the mvp matrix
mat4 mvp = p_mat * v_mat * m_mat;
//Load the shader program and set the mvp matrix
gl.Enable(NetGL.OpenGL.Texture2D);
gl.UseProgram(ShaderPrograms["MVPShader"].ProgramID);
gl.UniformMatrix4fv(gl.GetUniformLocation(ShaderPrograms["MVPShader"].ProgramID, "mvp"), 1, false, mvp.ToArray());
//Load the texture and send it to the shader
gl.BindTexture(NetGL.OpenGL.Texture2D, sprite.Texture.RenderID);
gl.TexParameteri(NetGL.OpenGL.Texture2D, NetGL.OpenGL.TextureWrapS, NetGL.OpenGL.Repeate);
gl.TexParameteri(NetGL.OpenGL.Texture2D, NetGL.OpenGL.TextureWrapT, NetGL.OpenGL.Repeate);
gl.Uniform1I(gl.GetUniformLocation(ShaderPrograms["MVPShader"].ProgramID, "textureSampler"), 0);
//Load the vertex buffer and set the new tex coords
int vertexBuffer = this.InstancedShapes["SpriteShape"].vbo;
gl.BindBuffer(OpenGL.ArrayBuffer, vertexBuffer);
float[] textCoordsf =
{
// Erstes Dreieck
sprite.TexCoords.BottomLeft.X, sprite.TexCoords.BottomLeft.Y,
sprite.TexCoords.TopLeft.X, sprite.TexCoords.TopLeft.Y,
sprite.TexCoords.TopRight.X, sprite.TexCoords.TopRight.Y,
sprite.TexCoords.BottomLeft.X, sprite.TexCoords.BottomLeft.Y,
sprite.TexCoords.TopRight.X, sprite.TexCoords.TopRight.Y,
sprite.TexCoords.BottomRight.X, sprite.TexCoords.BottomRight.Y,
};
gl.BufferSubData(OpenGL.ArrayBuffer, 36 * sizeof(float), textCoordsf.Length * sizeof(float), textCoordsf);
//Draw the Sprite
gl.DrawArrays(OpenGL.Triangles, 0, 6);
gl.Disable(NetGL.OpenGL.Texture2D);
Console.WriteLine(gl.GetError());
}
Funktioniert sehr gut soweit
